NYC-WTC_000229103

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1880 Lab Group #: 7893 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #; 1 Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496 rnm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings; 4 Analysis Date; 5/28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor v EDS No (NonaOB F B C M «05u Chrys Amphibote Nonasb Ambig/NO

a No Coord <5p Elements)

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Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: '1 - Positive diffraction pattern properties confomning to <50% undissotved filter, overlapped or folded Totals laboratory identificabon criteria observed <10% particulate coverage >50% coverage ate least 20 'jnfoldec or overlapped grid squares <5% F B C M ’/'EDS spectrum conforming to latjoratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSO = tro StriKtures Detected

CITY_21MC100_002902210

NYC-WTC_000229103